Stainless steel bands / rings that will not rust! Dishwasher safe – Perfect for drinking lids, fermentation, and lids that get used a lot. Not for canning – We have had a few reports that they can come loose. Other customers have reported they work fine, but we are not recommending them for canning as a precaution. 5 Bands per Order Rusted canning jar rings are a common problem, but now you can replace your old rusted bands with these higher quality stainless steel bands. No more rust on your jars, on your drinking lids, or on your hands! Stainless steel is not rust proof, but it is very rust resistant. These bands will not rust with normal use. They are made of .2mm thick 18/8 304 grade stainless steel. They are almost identical in thickness and size to the standard bands that jars come with. Available in both regular and wide mouth to fit Ball, Kerr, and other canning jars from 4oz jelly jars to half gallon! Fits with many accessories - my favorite are silicone lid liners!